.net 错误：图表在尝试10次后无法保存项目

我的miniture web应用程序做的很少：根据查询字符串中传递的项代码读取SQL并显示图表。它运行了好几个月，今天我突然收到了以下错误消息：

Server Error in '/' Application.
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Chart cannot save an item after 10 attempts.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.IO.IOException: Chart cannot save an item after 10 attempts.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[IOException: Chart cannot save an item after 10 attempts.]
   System.Web.UI.DataVisualization.Charting.ChartHttpHandler.GetChartImageUrl(MemoryStream stream, String imageExt) +532
   System.Web.UI.DataVisualization.Charting.Chart.Render(HtmlTextWriter writer) +243
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +240
   System.Web.UI.HtmlControls.HtmlForm.RenderChildren(HtmlTextWriter writer) +253
   System.Web.UI.HtmlControls.HtmlForm.Render(HtmlTextWriter output) +87
   System.Web.UI.HtmlControls.HtmlForm.RenderControl(HtmlTextWriter writer) +53
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +240
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +240
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +240
   System.Web.UI.Page.Render(HtmlTextWriter writer) +38
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +4240

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Version Information: Microsoft .NET Framework Version:2.0.50727.4952; ASP.NET Version:2.0.50727.4955

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我的DBA帮我解决了这个问题。硬盘空间不足，图表所需的临时文件夹已满，因此无法根据上述错误保存图表